Populate caller's name if there's any attachment in Servicenow(SNOW).

 //Display BR

function executeRule(current, previous){

g_scratchpad.email = current.caller_id.email;

g_scratchpad.hasAttachment = current.hasAttachments();

}(current, previous);

//onChange Client Script

function onChange(control, oldValue, newValue, isLoading, isTemplate){

if(isLoading || newValue === ''){

return;

}

if(g_scratchpad.hasAttachment)

alert("Email ID of caller is : "+g_scratchpad.email);

else

alert("NO attachement is in the form");

}